113165220 has 48 divisors (see below), whose sum is σ = 362130048. Its totient is φ = 25866240.

The previous prime is 113165201. The next prime is 113165249. The reversal of 113165220 is 22561311.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134301 + ... + 135140.

It is an arithmetic number, because the mean of its divisors is an integer number (7544376).

Almost surely, 2^113165220 is an apocalyptic number.

113165220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113165220 is an abundant number, since it is smaller than the sum of its proper divisors (248964828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113165220 is a wasteful number, since it uses less digits than its factorization.

113165220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269460 (or 269458 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 113165220 is about 10637.9142692541. The cubic root of 113165220 is about 483.6943235270.

The spelling of 113165220 in words is "one hundred thirteen million, one hundred sixty-five thousand, two hundred twenty".